904L Stainless Steel Cap

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ASTM B366 WP904L Stainless Steel Cap, Supplier of SS 904L Cap, ASTM B649 904L Pipe Cap, Stainless Steel 904L End Cap manufacturer

SS 904L Pipe End Cap Stockist, SS 904L Seamless Cap Stockholder, AISI 904L Forged Cap, SS 904L Threaded Cap Dealer, ANSI B16.9 Stainless Steel 904L Pipe Plug Distributor, EN 1.4539 Cap

Alloy 904L ASTM B366 WP904L Domed Weld-On Pipe Cap, ANSI B16.9, ANSI B16.28, MSS SP-43, MSS SP-79 Stainless Steel 904L Cap, SUS 904L Threaded Cap Stockist, INOX 904L ASTM B366 WP904L Stainless Steel Cap, Alloy 904L Butt Weld Cap supplier, B366 UNS N08904 Cap, DIN 1.4539 Cap Wholesaler, UNS N08904 Buttweld Cap

Wrought Austenitic Stainless Steel 904L SCH 5 Cap manufacturer, high quality Stainless Steel WP904L Cap supplier, 904L SS SCH 10 Cap distributor near you, SS Grade WP904L SCH 40 Cap stockist, SS 904L SCH 80 Cap stockholder, ASTM B366 WP904L NPT Threaded Cap for Sale, ASTM B366 WP904L Stainless Steel Reducing Cap at Best Price, ASTM B366 WP904L Sanitary Cap suppliers, WP904L Stainless Seamless Cap manufacturers, manufacturer of Stainless Steel 100% X-Ray Welded Cap WP904L, ASTM B366 WP 904L ANSI B16.9 Cap dealer, Distributor of WP 904L Stainless Steel Weld Cap, 904L Stainless Steel 36" Cap, supplier of 904L Stainless Steel 24" Cap SCH XXS, 904L Stainless Steel 36" SCH 160 Cap exporter in India

  • What is 904L Stainless Steel Cap?

Stainless Steel 904L Pipe Cap are useful even after long storage periods, all components of a pipe must still meet the requirements of industry regulations and standards. Activities like hook lifting, however, may cause serious damage to sensitive parts, such as bevels or internal coatings. These ASTM B366 Stainless Steel 904L End Cap Prevents contamination of the pipe interior from environmental influences, such as dirt, dust, water, snow, animals, etc. The main advantage to use Grade 904L Stainless Steel Cap is that no tools required for AISI 904L cap installation and removal.

Specialized manufacturer of Stainless Steel 904L Pipe End Cap – End Cap For Pipe, End Cap and Stainless Steel End Cap, Pipe Plug for the pipe, boiler, and tubing industries. Anchor Fasteners India is the leading stokists and exporters of high quality of pipe end cap, end cap for pipe, end cap, Domed Weld-On Pipe & Tube Caps, Dished disk weld-on caps,  Type B - Bullet Drive-On Cap, Type D – Dished Drive-On Cap,  Type F - Flat Drive-On Cap, stainless steel end cap, carbon steel end cap, alloy steel end cap, duplex steel end cap, nickel alloy end cap, buttweld end cap and low temperature carbon steel end cap.

We Specialise in Manufacturing Large Diameter and High Thickness ASTM B366 Seamless, Welded Stainless Steel 904L Cap. All SS 904L Cap are manufactured in India, with raw materials coming from reputed Mills in India and overseas. We are stockholder and supplier of 904L Stainless Steel Cap in a wide range sizes, surface treatment, and ASTM standards. UNS N08904 | WNR 1.4539 | Alloy 904L.

  • 904L Stainless Steel Cap Specification

SS 904L Cap SpecificationProduct Name: 904L Stainless Steel Cap
We accept all small/large quantity orders.

  • 904L Grade: SUPER AUSTENITIC 904L Cap/ SS 904L Cap/ WNR 1.4539 Cap/ UNS N08904 Cap/ AISI 904L Cap/ SUS 904L Cap/ INOX 904L Cap/ Alloy 904L Cap/ URANUS B6 Cap/ VdTÜV 421 Cap/ SEW 400 Cap/ 2RK65 Cap/ RVS 904L Cap/ SAE 904L Cap/ NAS 255 Cap/ AFNOR Z2 NCDU 25-20 / BS 904S13 / KS STS 317J5L / EN X1NiCrMoCu25-20-5 / NACE MR0175
  • Typical manufacturing specifications: ASTM B366 WP904L, ASTM B366 WP904L, ASME SB366 WP904L, ASME SB366 WP904L, ASTM A960, MSS SP-43, ASTM B16.9
  • Origin: European Origin, Indian Origin, US Origin, Korean Origin, Sweden Origin, Ukraine Origin, Japanese Origin Materials
  • Top 10 Manufacturer of 904L Cap: Raccortubi S.p.A. Pipe Cap, Italy, Erne Fittings Pipe Cap, Austria, Melesi Pipe Cap, Italy, Mega Pipe Cap, Italy, Ulma Pipe Cap, Spain, TecnoForge Pipe Cap, Italy, BENKAN Corporation Pipe Cap, Japan, BKL- Thai Benkan Pipe Cap, Thailand, Lame S.r.l. Pipe Cap, Italy, Metal far Pipe Cap, Italy, Anchor Fasteners India, India
  • Great offer on: Pipe caps- DIN 28011 / EN 10253 (DIN 2617), Pipe Elbow -EN 10253 type A (DIN 2605), Pipe Tee/ T-pieces with same outlet – EN 10253 type A (DIN 2615), Concentric reducers- EN 10253 type B (DIN 2616)
  • Delivery: 15-20 days
  • Application: Research, science, and industry for sterile and aseptic process engineering.
  • Material: DIN 1.4305, DIN 1.4301, DIN 1.4307, DIN 1.4948, DIN 1.4401, DIN 1.4404, DIN 1.4919, DIN 1.4571, DIN 1.4541, DIN 1.4878, DIN 1.4460, DIN 1.4550, DIN 1.4961, DIN 1.4840, DIN 1.4845, DIN 1.4449, DIN 1.4438, DIN 1.4841, DIN 1.4006, DIN 1.4005, DIN 1.4021, DIN 1.4016, DIN 1.4104, DIN 1.4057, DIN 1.4125, DIN 1.4762, DIN 1.4742, DIN 1.4539, DIN 1.4542, DIN 1.4545, DIN 1.4534, DIN 1.4980, DIN 1.3964
S 904L Cap Manufacturing Standards ASME: ANSI B16.9, ANSI B16.11, ANSI B16.28, MSS-SP-43, DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011, EN: EN10253-1, EN10253-2
Size Range 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Thickness SCH: 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS, Custom Thickness
Dimension B16.5, BS 4504, EN-1092
Other Stainless Steel Cap grades ASTM A403 WP 304/ 304L/ 304H/ 316/ 316L/ 317/ 317L/ 321/ 310/ 347/ 2205 Duplex Pipe Tee/ ASTM B366 904L Pipe Tee
Value Added Service Polish (Electro & Commercial)
Heat Treatment
Annealed & Pickled
Sand Blasting
Machining Etc.
Manufacture Standard: ASME B16.9, ASME B16.11, ASME B16.28, MSS SP-43, JISB2311, JIS B2312, JIS B2313, DIN 2605, DIN 2606, DIN2615, DIN2616, BG12459-90, GB/T13401, HGJ514, SH3408, SH3409, HG/T21635, HG/T21631

  • Types of 904L Stainless Steel Cap

    • 904L Cap supplier
    • Stainless Steel 904L Cap
    • 904L Stainless Steel Cap manufacturer
    • 904L Stainless Cap
    • SS 904L Cap manufacturer
    • Alloy 904L Stainless Steel Cap
    • AISI 904L Cap supplier
    • SUS 904L Cap manufacturer
    • INOX 904L Cap
    • Alloy 904L Cap
    • ASTM B366 Stainless Steel 904L Cap
    • WNR 1.4539 Cap supplier
    • UNS N08904 Cap manufacturer
    • Super Austenitic 904L Cap
    • Grade 904L Stainless Steel Cap
    • Stainless Steel Cap Grade 904L
    • SS DIN 1.4539 Cap
    • URANUS B6 Cap manufacturer
    • VdTÜV 421 Cap
    • BS 904S13 Cap
    • SEW 400 Cap manufacturer
    • 2RK65 Cap
    • KS STS 317J5L manufacturer
    • RVS 904L Cap
    • SAE 904L Cap supplier
    • NAS 255 Cap
    • ASTM B366 WP904L Cap
    • ASME SB366 Cap manufacturer
    • ASTM B366 UNS N08904 Cap

    • ASME SB366 UNS N08904 Cap manufacturer
    • 904L Stainless Steel Seamless Cap
    • ASTM B366 Seamless Cap exporter
    • 904L Stainless Steel Welded Cap
    • ASTM B366 Welded Cap manufacturer
    • ASTM B366 WP 904L Cap
    • 904L Stainless Steel Forged Cap
    • ASTM B366 Weld Cap supplier
    • 904L Stainless Steel Threaded Cap
    • 904L Stainless Steel Screwed Cap
    • 904L Stainless Steel Butt Weld Cap
    • 904L Stainless Steel Buttweld Cap
    • SS 904L SCH 5 Cap manufacturer
    • 904L Stainless Steel SCH 10 Cap
    • SS 904L SCH 40 Cap manufacturer
    • SS 904L SCH 80 Cap
    • 904L Stainless Steel NPT Threaded Cap
    • 904L Stainless Steel Reducing Cap
    • 904L Stainless Steel Sanitary Cap
    • ASTM B366 WP904L 36" Cap
    • ASTM B366 WP904L 24" Cap SCH XXS
    • ASTM B366 WP904L 36" SCH 160 Cap
    • ASTM B366 WP904L 24" Cap SCH 80S
    • ASTM B366 WP904L Cap 24" x 12" SCH 160
    • ASTM B366 WP904L Seamless Cap manufacturer
    • ASTM B366 WP904L 100% X-Ray Welded Cap
    • ASTM B366 WP904L ANSI B16.9 Cap
    • Seamless Cap, ASTM B366 WP Grade

  • 904L Stainless Steel Cap Packaging & Shipping:

904L Stainless Steel Cap Packed

904L Stainless Steel Cap Packed

SS 904L Cap Packing: We focus on every procedure to assure quality, the package we usually take is pack WNR 1.4539 Cap with environmental poly bags, and then in free fumigation wooden cases or wooden palte. Also can accept customized package such as OEM by negotiation.

Anchor Fasteners India offers just about everything to meet your UNS N08904 Cap pack requirements. Lot of emphasis is placed on the packing and packaging. The AISI 904L Cap are packed in wooden corrugated boxes foiled in plastic wraps and bubble wraps.

904L Stainless Steel Cap Marking: All SUS 904L Cap are marked with size and specification. Or as per customer’s requirement;

So, besides the fact that we can arrange freight transportation for you, we can before that:

  • Specifically mark parts or packages;
  • Provide for a special packing according to what is required by the shipping method or by you.

We mark the INOX 904L Cap as needed with the most suitable marking technique.

When packaging and packing, our experienced warehouse staff systematically takes the greatest precautions for your Alloy 904L Cap to be optimally protected during transportation. We pack the URANUS B6 Cap according to the appropriate method: strapped pallet, wooden crate, overseas packing (ISPM15).

Markings on the Stainless Steel 904L, UNS N08904,  WNR 1.4539 Cap

The full identification of the Cap should be continuously marked down its whole length, including:

  1. Nominal Cap Size of 904L Cap
  2. Schedule (Wall Thickness) eg SCH 40 SS 904L Cap
  3. Specification of SS 904L Cap
  4. Grade of Alloy 904L Cap
  5. Method of Manufacture (Seamless or Welded) of of SS 904L Cap
  6. Heat Number for of SS 904L Cap
  7. Manufacturer’s Name or Symbol of of 904L SS Cap
  8. Customized marking available for SS 904L Cap


Get 904L Stainless Steel Cap price list, send an email to us at [email protected], [email protected]

  • 904L Stainless Steel Cap Dimensions

904L Stainless Steel Cap Dimensions

904L Stainless Steel Cap Dimensions

Nominal Pipe Size Outside diameter
at bevel
Length (E) Limit wall thickness
1/2″ 21.3 25 4.57
3/4″ 26.7 25 3.81
1″ 33.4 38 4.57
1 1/4″ 42.2 38 4.83
1 1/2″ 48.3 38 5.08
2″ 60.3 38 5.59
2 1/2″ 73.0 38 7.11
3″ 88.9 51 7.62
3 1/2″ 101.6 64 8.13
4″ 114.3 64 8.64
5″ 141.3 76 9.65
6″ 168.3 89 10.92
8″ 219.1 102 12.70
10″ 273.0 127 12.70
12″ 323.8 152 12.70
14″ 355.6 165 12.70
16″ 406.4 178 12.70
18″ 457.0 203 12.70
20″ 508.0 229 12.70
22″ 559.0 254 12.70
24″ 610.0 267 12.70

The dimensions are in millimeters
Source : ASME B16.9 – 2007

904L Stainless Steel Cap Dimensions

CAPS – ANSI B 16.9 dimension

inches mm Height
1/2 15 21,34 25,40
3/4 20 26,67 31,75
  25 33,40 38,10
1 1/4 32 42,16 38,10
1 1/2 40 48,26 38,10
2 50 60,32 38,10
2 1/2 65 73,02 38,10
3 80 88,90 50,80
3 1/2 90 101,60 63,50
4 100 114,30 63,50
5 125 141,30 76,20
6 150 168,27 88,90
8 200 219,07 101,60
10 250 273,05 127,00
12 300 323,85 152,40
14 350 355,60 165,10
16 400 406,40 177,80
18 450 457,20 203,20
20 500 508,00 228,60
22 550 558,80 254,00
24 600 609,60 266,70
28    700 711,20 266,70
Dimension in mm

904L STAINLESS STEEL CAPS – Ansi 16.9 tolerances

904L Stainless Steel Cap Dimensions


For all fittings Caps
Nominal Pipe Size (NPS) Outside Ø at Bevel Inside Ø at End Wall Thickness
t / t1
Overall Length E
1/2 a 2 1/2 1 0,8 Not 4
3 a 3 1/2 1 1,6 less 4
4 +2 -1 1,6 than 4
5 a 6 +3 -1 1,6 87,50% 7
8 2 1,6 of nominal 7
10 +4 -3 3,2 tickness 7
12 a 18 +4 -3 3,2   7
20 a 24 +6 -5 4,8   7
26 a 30 +7 -5 4,8   10
32 a 48 +7 -5 4,8   10

  • 904L Stainless Steel Cap Weight Chart

904L Stainless Steel Cap Weight Chart

1/2 0.04 0.04 0.05 0.05
3/4 0.05 0.05 0.06 0.08
1 0.09 0.09 0.13 0.17
1 1/4 0.11 0.11 0.15 0.18
1 1/2 0.15 0.15 0.20 0.22
2 0.17 0.17 0.25 0.30
2 1/2 0.25 0.25 0.45 0.50
3 0.40 0.40 0.70 0.90
4 0.60 0.60 1.20 1.60
5 1.00 1.00 1.90 2.70
6 1.40 1.40 2.90 4.30
8 2.50 2.50 5.10 7.60
10 3.90 3.90 9.00 12.0
12 6.50 6.50 13.5 17.5
14 8.00 8.00 16.0 20.5
16 14.5 14.5 20.5 26.0
18 17.0 17.0 26.0 34.0
20 18.0 18.0 32.0 43.0
24 26.0 26.0 46.0 60.0
Approximate weights in kg, density 8 kg/dm3

  • SS 904L Other Products Stock List

  • 904L Stainless Steel Cap Chemical Composition
































  • 904L Stainless Steel Cap Mechanical Properties


Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min


Rockwell B (HR B)

Brinell (HB)





70-90 typical


  • 904L Stainless Steel Cap Corrosion Resistance

The high content of alloying elements in 904L Cap gives the alloy exceptionally good resistance to uniform corrosion.

Uniform Corrosion in pickling acid* at 25°C

ALLOY Corrosion Rate, mm/year
316L >6
904L 0.47
254 SMO® 0.27
654 SMO® 0.06

*Composition: 20% HNO3 + 4 HF

Uniform Corrosion in wet process phosphoric acid at 60°C

ALLOY Corrosion Rate, mm/year
316L >5
904L 1.2
254 SMO® 0.05

Composition: 54% P2O5, 0.06% HCI, 1.1% HF, 4,0% H2SO4, 0.27% Fe2O3, 0.17% AI2O3, 0.10% SiO2, 0.20% CaO and 0.70% MgO.

Corrosion rates in fatty acid column for the distillation of tall oil at 253°C

ALLOY Corrosion Rate, mm/year
316L 0.88
317LMN 0.29
904L 0.056
254 SMO® 0.01

  • Physical Properties of 904L Stainless Steel Cap



Elastic Modulus

Mean Co-eff of Thermal Expansion (µm/m/°C)

Thermal Conductivity

Specific Heat 0-100°C

Electrical Resistivity




At 20°C

At 500°C










33.5 Microhm-in at 68°F
95.2 Microhm-cm at 20°C

Alloy 904L Cap Melting Range:

Mean Coefficient of Thermal Expansion

Temperature Range    
°F °C in/in/°F cm/cm/°C
68–212 20–100 8.5 x 10-6 15.3 x 10-6

SS 904L Cap Special characteristics

Temperature range: Density kg/dm³ Hardness (HB)
pressure bomb/pressure vessel
– 60°C bis 400°C
7,9 ≤ 230
excellent stability against pitting corrosion, stress corrosion and intergranular corrosion

  • 904l Material Specifications



Old British


Swedish SS










Normen KS AFNOR NAS Japanese JIS G4304/4305  
VdTÜV 421, SEW 400 STS 317J5L Z2 NCDU 25-20 NAS 255 SUS 904L  

  • 904L Stainless Steel Cap Possible Alternative Grades

904l Stainless Steel Cap Equivalent Grades


Features of alternative grades of SS 904L


A lower cost alternative, but with much lower corrosion resistance.


A higher resistance to pitting and crevice corrosion is needed.


A very similar corrosion resistance, with the 2205 having higher mechanical strength, and at a lower cost to 904L. (2205 not suitable for temperatures above 300°C.)

Super duplex

Higher corrosion resistance is needed, together with a higher strength than 904L.

The steel shall conform to the requirements as to chemical composition specified.
The material shall conform to the mechanical properties specified.

SUS 904L Cap Heat Resistance

Grade 904L stainless steels Cap offer good oxidation resistance. However, the structural stability of this grade collapses at high temperatures, particularly above 400°C.

AISI 904L Cap Heat Treatment

Grade 904L stainless steels Cap can be solution heat-treated at 1090 to 1175°C, following by rapid cooling. Thermal treatment is suitable for hardening these grades.

SS 904L Cap Fabrication

Grade 904L stainless steel Cap are high purity steels with low sulphur content. They can be machined using any standard methods. These grades can be readily bent to a small radius under cold conditions. Although subsequent annealing is not required in most cases, it should be carried out when the fabrication is performed under severe stress corrosion cracking conditions.

904L Stainless Steel Cap producing through Cold forming

904L stainless steel Cap is quite ductile and forms easily. The addition of molybdenum and nitrogen implies more powerful processing equipment may be necessary when compared with the standard 304/304L grades.

Stainless Steel 904L Cap Machining

The cold work hardening rate of Alloy 904L Cap makes it less machinable than 410 and 304 stainless steel Cap.

904L Cap Welding

Welding of grade 904L stainless steels Cap can be performed using all conventional methods. This grade does not require pre-heat and post-weld heat treatments. Grade 904L Cap can be subjected to hot cracking in constrained weldment. Grade 904L electrodes and rods are used for welding grade 904L steel Cap according to AS 1554.6.

Alloy 904L Cap Hot Forming

Working temperatures of 1562 – 2102°F (850 –1150°C) are recommended for hot working processes. It is important that the entire workpiece be quenched from temperatures above 2012°F (1100°C). In the event of partial heating or cooling below 2012°F (1100°C), or if the cooling has been too slow, hot working should always be followed by a solution anneal and quenching. 904L Cap should be solution annealed at 1940 – 2084°F (1060 –1140°C).

904L Stainless Steel Cap Applications & Usage:

Some of the major applications of grade stainless steel 904L Cap include:

  • SAE 904L Cap for Air Pollution Control- scrubbers for coal-fired power plants
  • UNS N08904 Cap mainly used for Seawater cooling devices
  • SS 904L Cap can be use in Wiring in electrostatic precipitators
  • WNR 1.4539 Cap are used in Oil refinery components
  • AISI 904L Cap also useful for Gas scrubbing plants
  • SUS 904L Cap are commonly used by Pulp and paper processing industries
  • INOX 904L Cap are also suitable for Acetic, phosphoric and sulphuric acid processing plants
  • Alloy 904L Cap available for Oil and Gas Production- offshore process equipment
  • Offshore, sea water technology, chemical industry, good stability against reducing acids of medium strength like sulphuric acid and phosphoric acid and various chloric media, refinery, paper industry, pulp industry

Export Destinations for 904L Stainless Steel Cap

Anchor Fasteners India is a leading exporter and distributor of stainless steel 904L Cap in India and international markets such as Malaysia, Iran, Germany, UK, Canada, UAE, Bahrain, Indonesia, Mexico, Chile, Brazil, Peru, Nigeria, Kuwait, Jordan, Thailand (Bangkok), Saudi Arabia, Venezuela, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan. A widest range of SS 904L Cap ready stock available in Middle East countries including Bahrain, Iraq, Israel, Jordan, Cyprus, Egypt, Iran, Kuwait, Lebanon, Oman, Saudi Arabia, Syria, Turkey, United Arab Emirates, Palestine, Qatar and Yemen. Get best deals from distributor of 904L Stainless Steel Cap.

Domestic Supply Destinations for Stainless Steel 904L Cap and UNS N08904 Polished Cap

Our SS 904L products are supplied to all major Industrial areas and cities in India such as Mumbai, Ahmedabad, Chennai, Bangalore, Hyderabad, Assam, Siliguri, Kolkata, Surat, Pune, Nagpur, Indore, Thane, Bhopal, Visakhapatnam, Delhi, Vadodra, Nashik, Thoothukudi, Rajkot, Aurangabad, Salem, Bhilai, Bhiwandi, Bikaner, Jamshedpur, Warangal, Nellore, Agartala, Ranchi, Coimbatore, Raipur, Mysore, Mangalore, Kochi (Cochin), Bhavnagar, Tirupur, Ankleshwar, Bhubaneswar and Faridabad. For any location in your country you can find here trader of Stainless Steel 904L Cap in India, If your requirement is urgent we can offer a priority shipping service, but also if time is not so critical we can offer more cost-effective options to ensure you get the best value for money.

Available Cap Stock, a huge selection of steel Cap inventory:

  • 904l Cap Price

India’s Prominent manufacturer & supplier of Stainless Steel 904L Cap. We maintain bulk stock of 904L Cap. Supplier & distributor of Alloy 904L Cap globally in any size & schedule. We have a large inventory 904L Cap, UNS N08904 SS 904L screwed Cap, WNR 1.4539 SS Grade WP904L Cap, Source for ASME SB366 Stainless Steel WP 904L threaded Cap, Alloy 904L buttweld Cap. We have extended our stock program for you: ASME B16.9 stainless steel grade 904l Large Diameter and High Thickness ASTM B366 Seamless, Welded Stainless Steel Cap, available from stock.

Distributor, Manufacturer, Suppliers, Stockholder, Traders, Wholesaler, Dealer, Distributor, Importer & Exporter, Fabricator, Stockist of ASTM B366 WP904L Stainless Steel 904L Cap
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